13648328 has 32 divisors (see below), whose sum is σ = 26811000. Its totient is φ = 6504960.

The previous prime is 13648321. The next prime is 13648333. The reversal of 13648328 is 82384631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11682724 + 1965604 = 3418^2 + 1402^2 .

It is not an unprimeable number, because it can be changed into a prime (13648321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20318 + ... + 20978.

Almost surely, 2^13648328 is an apocalyptic number.

It is an amenable number.

13648328 is a deficient number, since it is larger than the sum of its proper divisors (13162672).

13648328 is a wasteful number, since it uses less digits than its factorization.

13648328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 781 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 13648328 is about 3694.3643566925. The cubic root of 13648328 is about 238.9790426469.

The spelling of 13648328 in words is "thirteen million, six hundred forty-eight thousand, three hundred twenty-eight".